B）从方框中选择恰当的句子完成对话

A: Hi, Wang Tao ! Come here _____.
B: Sorry ,I can’t .
A: _______
B: I’m doing my homework ,
Go and ask Zhang Ming.
A: Thank you, ________
B: He is at home .
A: _______
C: Yes,come in,please. Hi,Li Bing.
A: Zhang Ming,do you want to play basketball with us?
C: Certainly ! ______ .